Bolting-cloth cleaner.



S. SNYDER.

BOLTING CLOTH CLEANER.

APPLIOATION FILED MAR. 21, 1911.

1,021 ,008. Patented Mar.26, 1912.

WITNESSES M C A @Z'Mu v W I W fi Attorney s. SNYDER. I BOLTING CLOTHCLEANER.

APPLICATION EILE D MAR. 21,1911.

1,021- ,OO8 Patented Mar. 26, 1912.

2 SHEETS-SHEET 2.

WITNESSES INVENTOR UNTE STATES ATENT OFFICE.

SIMON SNYDER, OF MUNC'Y, EENNSYLVANIA, ASSIGNOR TO SPROUT, WALDBON &COMPANY, OF MUNCY, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

BOLTING-CLO'I'H CLEANER.

Specification of Letters Patent.

Application filed March 21, 1911.

Patented Mar. 26, 1912.

Serial No. 616,038.

To all whom it may concern Be it known that I, SIMON SNYDER, a citizenof the United States, residing at lVIuncy, in the county of Lycoming andState of Pennsylvania, have invented certain new and useful Improvementsin Bolting-Clot-h Cleaners, of which the following isa specification.

This invention relates to means for cleaning the cloth or bolting silkof flour-bolting machines, and one object of the invention is to providea device which will be simple in construction and arrangement of itsparts, and efficient in operation and which will automatically reverseits movement at each end of its stroke, without any attention on thepart of the operator.

A further object of the invention is to provide a construction whichwill be strong and durable and will offer no obstruction to the flow ofthe flour through the sieve.

The invention also seeks to provide means whereby a positive stop forthe brushes will be provided, and the brushes will be held against thecloth with sutlicient pressure to thoroughly clean the same, but will bepermitted to yield to the weight upon the cloth, so that the injuring ofthe cloth by the brushes Will be prevented.

All these objects, and such other incidental objects as will hereinafterappear, are attained in such a device as is illustrated in the drawings,and the invention resides in certain novel features which will be hereinafter fully described and then distinctly stated in the claims.

In the accompanying drawings, Figure 1 is a longitudinal section of asieve showing my improvements applied thereto. F ig. 2 is an enlargedplan view of a portion of the sieve. Fig. 3 is a transverse section onthe line 3-3 of Fig. 1. Fig. 4: is a perspective View of the brushholder and the guide, and stop brackets at the ends of the same. Fig. 5is a detail sectional view of one end of the brush showing the stopthereon in engagement with the transverse stop bar of the sieve frame.Fig. 6 is a detail sectional elevation, looking at the side of the brushopposite that seen in Fig. 8 and taken on line 66 of Fig. 2. Fig. 7 is adetail perspective view of the pawl and its support.

The sieve frame 1 is preferably of an oblong rectangular form and may beoperated in any of the ordinary well-known methods,

although a gyratory motion is usually imparted thereto. On the innerfaces of its side bars, the sieve is provided with longitudinal rails 2on which the brushes are slidably mounted. At the center of the sieveframe, I mount a transverse metallic bracing or connecting rod 3 whichserves as a stop to limit the movement of the brushes, and also as asupport for the pawl 4 by which an impelliug movement is transmitted tothe brushes. Two brushes 5 are employed, and these brushes are connectedby straps or bars extending longitudinally of the sieve, so that theywill move simultaneously and equally in either direction. The brushesconsist of heads 6 and bristles 7 rising therefrom, the heads beingmounted in holders 8 consisting of transverse metal straps or plateshaving stirrups 9 at their ends to receive the brushheads 6, and springs10, secured to the under side of the brushhead, bear against the lowerportions of bases of the stirrups so as to yieldingly hold the brushesto the bolting cloth and thereby establish a firm pressure against thecloth, while at the same time permitting the brushes to yield to anyirregular distribution of the load upon the cloth, so that tearing ofthe cloth will be prevented, although the brushes will be held inconstant contact therewith to keep the meshes of the same open andclean. Guides or hangers 11 are also provided at the ends of the bars orstraps S, and these guides are in the form of angular brackets whichengage over the rails 2 and against the sides of the same, so as tosupport the brushes on the rails and permit them to slide therealonAdjacent these guides or hangers, stop fingers 12 project upwardly fromthe straps or bars 8 and these fingers are adapted to impinge againstthe transverse rod 3 and thereby limit movement of the brushes in eitherdirection.

Parallel straps or connecting bars 13 extend between the straps orholders 8 and have their ends bent outwardly at right angles to formlugs or ears 14, which are rigidly secured to the said straps or holders8 as clearly shown. Between these straps or bars 13 and paralleltherewith is a central rack bar 15, the ends of which are spaced fromthe holders 8, as shown most clearly in Fig. 2, and the teeth 16 ofwhich on the upper edge thereof are so shaped that their edges extend atan angle of for instance 45 whereby they will be positively engaged bythe actuating pawl on either side, so as to be effectually operated ineither direction, the lower free end of the pawl being rectangular tofacilitate such engagement. It will be observed that by the describedconstruction a rigid connection is provided between the brushes, at anangle thereto, preferably at right angles, with very little obstructionof the intervening space, and that the rack-bar is supported by saidconnection so as to leave at each end an unobstructed space between itand the adjacent brush into which the free end of the dog may drop, forreversing the direction of movement of the brushes, and that one of theedges of the teeth of the rack-bar is upwardly inclined away from onebrush and the other edge upwardly inclined toward the same brush, andaway from the other brush, so that the angular end of the dog maysquarely engage or abut against that edge of the tooth that is inclinedtoward the brush that is being moved away from the dog, thus insuring apositive engagement and a firm hold of the dog in effecting the desiredmovement of the brushes in both directions. The rack bar is secured tothe straps or bars 13 by bolts 17 around which spacing ferrules orcollars 18 are fitted between the rack bar and the connecting straps orbars, so that the parallel relation of the parts will be preserved andthe spao ing of the same will be maintained. The actuating pawl ismounted to swing freely on the bar 3 and consists of a block 20 hav inga squared lower end and provided at its upper end with a cylindricalenlarged head 21 having a semi-circular slot 22 through which the stoppin 23 is inserted into the bar 8 so as to limit the movement of thepawl in either direction and prevent premature reversal.

By referring to Fig. 1, it will be readily seen that the pawl, by its en'agement with the rack bar in the illustratec arrangement, will preventmovement of the brushes except to the right. hen the sieve moves to theright it will carry the brushes in the same direction, but when thesieve moves in the opposite direction the brushes will continue to moveslightly by reason of their inertia, the rack bar sliding under thepawl. The brushes will thus have a movement rela tive to the sieve,which will gradually carry them to the end of the sieve, whereupon thepawl will drop into the space between the end of the rack 'bar and theadjacent brush, so that the reverse movement of the sieve will thencarry the end of the rack bar under the pawl and cause the pawl to rideover the said end of the rack bar and assume an inclination, the reverseof that previously assumed by it. The brushes will, consequently, thenbe caused to travel relative to the sieve in a direction opposite tothat previously traveled by them, so that the entire surface of thebolting cloth will be treated and the meshes of the same effectuallycleaned. It will also be noted that the fingers 12 will impinge againstthe transverse rod 8 when the brushes reach the end of their travel, sothat the movement of the brushes will be positively arrested and injuryto the pawl through forcible contact of the brush head therewith will bepre vented.

It will be readily understood from the drawings and the foregoingdescription that my improved device otters practically no obstruction tothe downward flow of the flour, so that the choking of the parts cannotoccur. The construction is such, also, that all. the parts may be madeof metal and consequently the maximum strength with the minimum weightattained.

The peculiar form of the guide hangers will hold the brushes to therails, so that they cannot slip out of engagement therewith, while atthe same time they may slide freely along the same, and the disengagement of the brush heads from the holders under the influence of thesprings, during' the operation of the device is prevented by lips orstops 24- projecting from the straps 8 over the brushheads 6, as clearlyshown in Figs. 2, at and 5.

fly device derives its impulse from the movement or throw of the boltingsieve in either direction, and will move so easily that no additionalpower will be required to operate any of the parts. The pin 23 securedin the central transverse rod 3, by contacting with the ends of the slot22 in the head of the pawl, will limit the upward throw of the pawl, sothat it cannot assume an inoperative position, it being understood thatthe length of the slot will not exceed one half the circumference of thehead of the pawl. The spacing ferrules or collars between the rack barand the connecting bars will hold the said connecting bars out ofcontact with the rack bar, and thereby afford ample space for the playof the pawl, while at the same time this space will accommodate thedownward flow of the flour and prevent accumulation of the same on theworking parts so as to impede the action.

By referring to Fig. 2, it will be noted that the rack bar and thestraps 13, which support it, present their edges to the flow of theflour and that wide spaces are provided between the rack bar and theconnecting bars while the spaces between the brushes and the ends of thesieve are unobstructed and consequently there are 110 wide or closesurfaces upon which the flour may lodge.

The bolting machine having been set in motion, the brushes will becaused to automatically travel back and forth continuously in contactwith the cloth as long as the sieve is operated so that the meshes ofthe cloth will be kept open and the flow of flour to cause reciprocationof the brushes.

2. The combination with slidably mount-- ed brush holders havingstirrups at their ends, of brush heads fitted in said stirrups, springsbearing against the brush heads and the bases of the stirrups, means forlimiting the movement of the brushes under the influence of saidsprings, connections between the brush holders, and means whereby thebrush holders will be reciprocated.

8. The combination of slidably mounted brush holders having stirrups attheir ends, brushes having their ends engaging said stirrups, means foryieldingly supporting the brushes in said stirrups, stops on the brushholders overhanging the brushes, and means for imparting motion to thebrush holders.

4. The combination with a sieve having longitudinal rails on its innersides, of brush holders fitted between the said rails, hangers at theends of the brush holders projecting angularly from one side thereof,and constructed to ride upon the tops of the rails and bear against thesides of the same, brushes carried by the holders, connections betweenthe holders, and means whereby the movement of the sieve will actuatethe brush holders.

5. The combination with a sieve, of a brushing member slidably mountedtherein, a rack bar on said brushing member, a transverse rod secured inthe sieve, a reversible pawl hung on said rod and engaging the rack bar,said pawl having a slot in its head disposed transverse to said rod, anda stop on the rod engaging said slot.

(3. The combination with a sieve, of rails secured longitudinally to theside walls of the sieve, a brush holder extending between the rails,laterally projecting hangers carried by the ends 01 the said holder andhaving top members extending over and resting upon the rails and sidemembers bearing against the inner sides of the rails, a brush mounted inthe said brush holder and bearing against the top oi the sieve and stopson the holder overhanging the brush.

7. The combination with a sieve, of brush holders extending between thesides of the sieve and slidably engaging the same, brushes mounted inthe said holders and bearing against the top of the sieve, parallelstraps extending between the brush holders and having their ends securedto the same, a rack bar disposed between the said straps and paralleltherewith and terminating short of the brush holders, means for securingthe said rack bar to the said straps and maintaining it in spacedrelation therewith, and a pawl pivotally mounted in the sieve above thesaid 'ack bar and riding upon the same.

In testimony whereof I aflix my signature, in presence of two witnesses.

SIMON SNYDER. Witnesses JAS. T. sinvnn'roorn,

J. 0. SMITH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

